Nothing is eternally stable, and even Kansas isn't really in Kansas anymore. The earth is in a constant state of flux.

Things of this world are in so constant a flux, that nothing remains long in the same state.

Musicals are famous for being in a constant state of flux.

The constant flux and caprice of mental events do not admit of the establishment of stable experimental conditions.

We associate the North Atlantic with cod. The motto of Newfoundland used to be 'In cod we trust.' It was a joke, but it was essentially true. But there is no cod anymore. And that's extraordinary. It's all because of either greed or politics - Canadian politics.

Of course, a movie is in constant flux.